Coal desulfurization

US4146367A · kind A · utility

Assignee

• The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventor

• George Hsu · San Jose, US

Key dates

• Filing date: Feb 16, 1978
• Grant date: Mar 27, 1979
• Expiry date: Feb 16, 1998

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10L9/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Organic sulfur is removed from coal by treatment with an organic solution of iron pentacarbonyl. Organic sulfur compounds can be removed by reaction of the iron pentacarbonyl with coal to generate CO and COS off-gases. The CO gas separated from COS can be passed over hot iron filings to generate iron pentacarbonyl.